Android PDF Writer (APW) Enconding

Question

I use Android PDF Write (APW) to create a PDF file, but it does not work with some special characters (Portuguese).

mypdf.addText(170, 50, 40,"Coração"); 

Standard application:

 mypdf.setFont(StandardFonts.SUBTYPE, StandardFonts.COURIER, StandardFonts.WIN_ANSI_ENCODING); outputToFile("helloworld.pdf",pdfcontent,"ISO-8859-1"); 

I tried

 outputToFile("helloworld.pdf",pdfcontent,"UTF-8"); outputToFile("helloworld.pdf",pdfcontent,"UTF-16"); outputToFile("helloworld.pdf",pdfcontent,"Cp1252"); 

and failed. Any ideas what should I do?

EDIT

The outputToFile method is defined as:

  private void outputToFile(String fileName, String pdfContent, String encoding) { File newFile = new File(Environment.getExternalStorageDirectory() + "/" + fileName); try { newFile.createNewFile(); try { FileOutputStream pdfFile = new FileOutputStream(newFile); pdfFile.write(pdfContent.getBytes(encoding)); pdfFile.close(); } catch(FileNotFoundException e) { // } } catch(IOException e) { // } } 

The addText method is defined as:

  public void addText(int leftPosition, int topPositionFromBottom, int fontSize, String text, String transformation) { addContent( "BT\n" + transformation + " " + Integer.toString(leftPosition) + " " + Integer.toString(topPositionFromBottom) + " Tm\n" + "/F" + Integer.toString(mPageFonts.size()) + " " + Integer.toString(fontSize) + " Tf\n" + "(" + text + ") Tj\n" + "ET\n" ); } 

In addition, I change the font color to white by adding the following rawcontent:

 mypdf.addRawContent("1 1 1 rg\n"); 

Then I go back to the black color of the font:

  mypdf.addRawContent("0 0 0 rg\n"); 

Answer 1

I took all the information provided, wrote the following simple unit test method, and ran it.

 public void test19192108() { PDFWriter mPDFWriter = new PDFWriter(PaperSize.FOLIO_WIDTH, PaperSize.FOLIO_HEIGHT); mPDFWriter.setFont(StandardFonts.SUBTYPE, StandardFonts.COURIER, StandardFonts.WIN_ANSI_ENCODING); mPDFWriter.addText(170, 50, 40,"Coração"); String pdfcontent = mPDFWriter.asString(); outputToFile("helloworld19192108.pdf",pdfcontent,"ISO-8859-1"); } 

( outputToFile is a helper method from the APW class PDFWriterDemo )

The result is as follows:

It is like meeting expectations.

Thus, depending on how it does not work with some special characters (Portuguese) for the OP, important information is missing to reproduce the problem.

PS: Depending on the development environment setting, there may be a problem with non-ASCII characters in the source code. So it would be nice to replace

  mPDFWriter.addText(170, 50, 40,"Coração"); 

from

  mPDFWriter.addText(170, 50, 40,"Cora\u00e7\u00e3o"); 

PPS: Adobe Reader after viewing the created file wants to restore it. The reason is that the cross lookup table is broken. Entries for generating code for this:

 public void addObjectXRefInfo(int ByteOffset, int Generation, boolean InUse) { StringBuilder sb = new StringBuilder(); sb.append(String.format("%010d", ByteOffset)); sb.append(" "); sb.append(String.format("%05d", Generation)); if (InUse) { sb.append(" n "); } else { sb.append(" f "); } sb.append("\r\n"); mList.add(sb.toString()); } 

(from CrossReferenceTable.java )

Counting the characters in this record, we get 10 + 1 + 5 + 3 + 2 = 21.

According to specification:

Each record must be exactly 20 bytes, including the end of line marker

(from section 7.5.4 Cross-reference table of ISO 32000-1 )

When using (current version) Android PDF Writer, you must also fix this code.